Akustisk faryngometri - En ny metode for å bedre behandlingen med apnéskinne for pasienter med OSA

Forskere fra Universitetet i Bergen, Nasjonal kompetansetjeneste for søvnsykdommer og Tannhelsesenteret Lørenskog og Sogndal har i denne studien undersøkt bruk av akustikk for å registrere volumet for de første 25 cm i øvre luftveier målt fra fortennene (AP). Hensikten med denne målingen er å optimalisere plasseringen av apnéskinne og bedre resultatet ved apnéskinnebehandling ved obstruktiv søvnapné. Forskerne fant i denne studien at AF ser ut til å bedre effekten ved apnéskinnebehandling. Ytterligere forskning om AP i behandling med apnéskinne er nødvendig for å avklare det mulig fordelaktige bidraget til behandling av denne pasientgruppen.

Acoustic pharyngometry - A new method to facilitate oral appliance therapy

Ulrik Leidland Opsahl, Morten Berge, Sverre Lehmann, Bjørn Bjorvatn, Per Opsahl, Anders Johansson

Studien er publisert i Journal of Oral Rehabilitation

Background: There is lack of reliable and accurate methods to predict treatment outcomes of oral appliance (OA) treatment. Acoustic pharyngometry (AP) is a non-invasive technique to evaluate the volume and minimal cross-sectional area of the upper airway, which may prove useful to locate the optimal position of OAs.
Objective: This retrospective study aimed to evaluate the effect of applying AP to OA treatment of patients with obstructive sleep apnoea (OSA).
Methods: All patients (n = 244) treated with OAs following an AP protocol at two dental clinics between 2013 and 2018 were invited to participate. A total of 129 patients accepted the invitation, and 120 patients (75 men, 45 women) were included in the analyses. Mean baseline age, BMI and apnoea hypopnea index (AHI) were 59.1 ± 0.9 years, 27.8 ± 0.4 and 21.9 ± 1.1, respectively. Mean follow-up time was 318 ± 24 days.
Results: AHI at follow-up was 6.4 ± 0.7, resulting in a treatment success rate of 86.7% (≥50% reduction of baseline AHI). The number of failures (<50% reduction of baseline AHI) did not differ significantly among patients with mild, moderate and severe OSA. 87.6% of the patients reported OA usage every night, and 95.5% reported > 5 hours usage per night, when worn.
Conclusion: The AP protocol applied seems to contribute to the excellent effect of OA treatment in this study. Further research on the application of AP in OA treatment is necessary in order to clarify its possible beneficial contribution to improving OA therapy.